Calculating machine



w. A. PARSONS ET AL 2,647,687

Aug. 4, 1953 CALCULATING MACHINE 7 Sheets-Sheet 1 Filed May 8, 1951 JNVENTORS,

UUzarTon H. Parsons,

BY Richard EjBusch ATTORNEY:

1953 w. A. PARSONS ETAL 2,647,687

CALCULATING MACHINE '7 Sheets-Sheet 2 Filed May 8, 1951 m mm ma V n N n m a m R BY Richard E.Busch X/QM ATTORNEY.

7 Sheets-Sheet 3 0R3, n 6. Parsons ATTORNEY W. A. PARSONS EI'AL CALCULATING MACHINE Aug. 4, 1953 Filed May 8, 1951 3 3 my g INVENT will 5. mm Z/ W whar Aug. 4, 1953 w. A. PARSONS ETAL 2,647,687

CALCULATING MACHINE 7 sheet et 4 Filed May 8. 1951 U INVEN rim 6. Par

ATTo- E y v wgtfchard lBusch %/77W mmmunnuumn 1953 w. A. PARSONS ETAL 2,647,687

CALCULATING MACHINE 7 Sheets-Sheet 5 Filed May 8, 1951 g a: Q 5 @n g R a k s 3 mm P m m u T MB Q m m R VAQIQ & m n m Q Nm mm l w m Wm am w N &

Z /Wiw ATTOR NE Y.

Aug. 1953 w. A. PARSONS ETAL 2,647,687

CALCULATING MACHINE 7 Sheets-Sheet 6 Filed May 8, 1951 A ccumulalor B.

EIELII- 5 m R3 or a MP V m By Richard Ellusch 4T0RNEYI CALCULATING MACHINE Filed May 8, 1951 '7 Sheets-Sheet 7 JNVENTORJ, wharfon 6. Parsons, BY Richard EBusch ATTORNEX Patented Aug. 4, 1953 Wharton A. Parsons, Glendale, and Richard E. Busch, El "Monte, '.Calif., assignors to Clary -Multip1ier "Corporation, --corporati0ncf California San Gabriel, Calif., a

Application May 8,1951, Serial N 0. 225,092

1 8 Claims.

This invention relates todaheclass ofcalculating,machineasuchas.addingmachines, cash egistering machines, etc... wherein an accumulator is driven in different manners by diiferential actuators. therefor whereby .to. selectivel enter amounts additively .or .su'btractively.

Although the invention isiparticularly applicable ;to machinesof the above. type having a pinrality of accumulator sand controls therefor, at least certain .of .the basic features of theinvention may be .applied tocontrols for .a single accumulator.

The principal object .of the present invention is to increase the flexibility of controls for selecting accumulatorszand .ior selecting the, type of digitation of each accumulator.

.Another object is to reduce .the pressure required. to depress accumulator selecting and type of operation control keys.

.Another. object is. to provide controls for a multi-accumulator machine of the foregoing typ havingprovision .for preselectively determining the entry and type. of .entryinto a-selected one or moreaccumulators.

. Another object isto cumulator into any ,of actuators .thereforun-der control of elements settable into either .of .two. positions only.

enable. settingof. an ac.-

Themanner in which .theiabove and other ob.-

jects .of..the .invention-.;are accomplished will .be readily understood on reference to the following specification when read in conjunction with .the accompanyingdrawings, wherein:

Fig, l is .a plan view of a cash registering machine embodying .the present invention.

Fig. .2 ice sectional elevation view through the machine J illustrating the. racks, keyboard and mechanism associated therewith,

Fig; dis a sectional view illustrating the settable machine control knob and controls actuated thereby, and also the .cash drawer control mechanism, said viewheing taken, substantially alonggthe line'.3-"3.ofFig. 4,.

Fig. 4 is a transverse sectional viewofpart of the machine, illziistra'lting "the s'ettable control knob and cash drawer control mechanism, and is taken (substantially along 'theJIine 4-4 'ofiFig. '3.

Fig, '5 is a sectional .view illustrating the key lock controls andistaken .along the line 5, 5 of Fig. 3'.

Fig. 6 is a sectional elevation viewthrough the controls "for the machine "and particularly "the controls 'for 'selectingthe accumulators and type of =operation ofthe accumulators.

6A is-asectional elevation View illustratthree positions relative .to

Ill

iii

i basic form in the .copending or to cash registering ing the various machine control bars and related devices.

Fig. 7 is .a sectional view ofthe accumulator controls and is taken substantiallyalong the line "1-4! of Fig. 8.

-" relation between such discs and the accumulator control links.

Fig. 12 is. a sectional elevation View similar to Fig. 6 but with parts broken away, illustratin the machine control knob in .a cash settingand. with the charge key depressed.

The particular embodiment of the invention disclosed herein is applied tothewell-known and. commercially available Clary cash registering machine which is disclosed and claimed in its application of .R. E. Boyden etal s. N. 38,294,.filed .Julylz, 1948,.now Patent No. 2,607,526. Various operatinginstrumentalities of .the machine, particularly of. the computing section, are disclosed andclaimed in the patent to R. .E. .Boyden, No. 2,533,81D,.issue d. on January 29, 1952, and in the patent to .E. P. Drake,,No. 2,432,696, issued on .June 7, 1949, the latter disclosing and claiming the particularaccumulator structure illustrated herein. It should. be understood, however, that although the invention is disclosed asembodied inacash r gisteri machine .of the duplex accumulator type, the basic features may be equally Well applied .to other forms of adding and calculating machines. machines embodying lone-or more. accumulators.

Themachine comprises in general .a computing section enclosed by a cover VI 1 (Figs. .1 andzl and a cash drawer section enclosed by a cover [2 (Figs.

1 and 3) underlying the computing section.

Amounts are entered into the machine through a .keyboardcompr'ismgamount keys l3. The left hand row M in the keyboard is provided -for designation purposes only and therefore amounts set therein are .not accumulated.

vAn add bar l5 chine to additively enter items set up on the keys I3 into one accumulators generally indicated at A and B (Fig. '2') depending upon the presetting of a ma with parts brokenawam similar to that of chine control knob |8 which is adjustable into any of five positions for controlling functioning of the machine in different desired manners. A subtract bar |9 is provided to cause the machine to subtract items entered in the keys l3 from a preselected accumulator. A non-add or charge bar 28 is provided to control printing only of items set in the keyboard. Total and sub-total bars 2| and 2|a, respectively, are provided to total or sub-total items from one or the other of the two accumulators depending upon the set ting of the knob l8.

As disclosed in the aforementioned Boyden patent, the computing mechanism is motor-driven and includes a cyclically operable drive shaft 22 (Figs. 2, 3 and 6), driven by a cyclic clutch (not shown) under control of the various control bars l5, I9, 28, 2| and 2m. Depression of any of said bars causes a cycle of operation of the machine, i. e., a complete rotation of the shaft 22.

The shaft 22 is effective, as will be described presently, to mesh one or the other or both of the accumulators A and B in different manners with difierentially movable actuating racks 24 and 25, respectively (Fig. 2). The shaft 22 is also effective thereafter to differentially advance the racks until arrested by the stems of depressed ones of the amount keys and to release a cash drawer, partly illustrated at 28, permitting the latter to move from its illustrated closed position Within the cover |2 when conditioned to do so by appropriate setting of the knob Hi.

The upper racks 24 are provided with a series of shoulders 28, the shoulders being spaced apart distances slightly greater than the spacing between the stems of the amount keys |3 whereby when the racks are advanced until arrested by depressed ones of the amount keys they will move a number of increments equal to the values of the keys depressed. Normally, when no key in any one order is depressed, its associated racks 24 and 25 are prevented from movement by a zero stop 29 positioned directly in front of one of the shoulders 28. However, upon depression of a key |3 a cam lug (not shown) thereon will become effective to move the zero stop out of the way of the racks, permitting the same to be advanced until arrested by such depressed key.

The upper racks 24 are guided for fore and aft movement by a movable shaft 38 and a stationary shaft 3| extending through slots 32 and 33, respectively, formed in these racks. The lower racks 25 are similarly guided by two stationary shafts 34 and 35 embraced by slots 38 and 31, respectively, in each rack. The racks 24 and 25, in each order of the machine, are coupled together so as to move fore and aft as a unit by means of a plate 38 suitably secured to the lower rack 25 and provided with a pin and slot connection 39 with the upper rack 24.

For the purpose of differentially advancing the various pairs of racks 24 and 25, the shaft 38 is driven sideways, fore and aft of the machine, by the drive shaft 22 through drive means (not shown) and is yieldably connected to each rack by pairs of opposed drive elements 40 and 4|. The latter are pivotally supported on the shaft 30 and are each provided with a roller 42 which normally engages a lateral depression formed in the closed end of the slots 32. A spring 43 is tensioned between the elements 40 and 4| to urge them apart and thus normally hold the rollers 42 thereof in the depressions until the respective rack is arrested by the zero stop 29 or by the stem of a depressed key M, if such a key is depressed in the associated row of keys.

Each of the accumulators A and B (Fig. 2) comprises a series of ordinally arranged accumulator gears 44 rotatably mounted on an accumulator shaft 45 (associated with accumulator A) and shaft 48 (associated with accumulator B). Each accumulator gear 44 is arranged to mesh with the upper rack gear section 41 or lower rack gear section 48 of the associated rack and thereby enter amounts into the accumulator additively or subtractively. On the other hand, when the accumulator gears are positioned as illustrated'in Fig. 2, movement of the racks will be ineffective to actuate such gears.

As disclosed in detail in the aforementioned Drake patent, each accumulator includes a second lower shaft 50 (Fig. 6) which together with its upper shaft 45 or 45 supports the accumulator as a unit for vertical movement. Each shaft is guided at the opposite ends thereof by suitable guideways (not shown) enabling the respective accumulator to move vertically into mesh with the upper or lower rack gear sections of the respective racks.

Referring to Fig. 6, the accumulator shaft 45 has rollers rotatably mounted on opposite ends thereof, one of which is shown at 5|, and each is embraced in a cam groove 52 formed in a box cam, one of which is shown at 58, pivoted on a frame stud 54. Suitable means (not shown) are provided to transfer movement from the cam 53 at one end of the shaft 45 to the similar cam at the opposite end thereof whereby to effect parallel vertical movement of the accumulator.

Each of the accumulators is normally, i. e., when the machine is at rest, held in its neutral illustrated position wherein the gears thereof are located out of mesh with both rack gear sections 41 and 48 of the associated racks. For this purpose, the undersurface of the box cam 53 is provided with a V-shaped notch 55 normally engaged by a centralizer 56 fulcrumed at 51 and urged in engagement with the notch 55 by a spring 58. However, clockwise rocking of the cams 53 from their centralized positions will raise the accumulator to mesh with the upper rack gear section 41 to effect additive entries into the accumulator whereas counter-clockwise rocking movement of the cams will lower the accumulator into mesh with the lower rack gearsections 48 and thereby effect subtractive entries into the accumulator.

Describing ering the accumulators to selectively effect additive or subtractive entries therein, such means is precisely the same for both accumulators and,.

therefore, for the sake of brevity, only the mechanism associated with the upper accumlator will be described in detail.

The cam 53 has a pair of pins 88 and 5| extending therefrom on opposite sides of the pivot stud 54. These pins are adapted to be engaged by respective ones of two hooks 82 and 83 (see also Figs. 7, 8 and 10) pivotally mounted at 84 and 84a respectively, on an actuating slide 55.-

The hooks are normally held in an infiective position shown in Figs. 6 and 7 against pins 85 and 81 extending respectively from the links 82 and 83 by a spring 61 tensioned between the hooks.

The slide 55 is guided for fore and aft movement at the front by a stationary frame pin 88 embraced by an elongated slot in the slide. The rear of the slide 55 has an elongated slot emnow the means for raising and lowbracing 1a.; pimlifi 5' on :a: threeearmed cam :follower pivotallyamounted; onzathezshattz. 311.. stmne tension-spring? .iextends between-ltheepiniliflland .azpin 11-2;- on thELSHdBQGS'iSOLaJSSt normally hold thegpin 56a in engagementmvith :theialeft handend of its embracing slot.

All spring 2 J3. normally 'urges. .the. scam: follower 10. counterclockwise:to. hold 113) roller :.1 4 :thereof against :the: periphery .of: a cam?! 5 ,slseyed 1 on the aforementioned .ldriveishaft .122;

The; shaft .22.. is. rotated ocounteri-clockwisa;in the direction. of: arrowsD, and-itawill therefore; be seen. :that. the cam 1175; will; be. eifective-.;through .thecam follower. 1.9 tolmove-theslide 6,5urearwardgat the. beginning 1 of. a. machine :1. cycle .and normally. return; the... same, to; its; forward illustrated. position. at approximately midway through the. machine. :cycle; Theisliderafiiazasso- .ciated with the 1- lower. aecumulatorris." moved in precisely the. same;umanner...as. slides .65 and; for this purpose-the former. is eonnectedlithrough .a .bell-cranklt, pivoted atr'lii, andalink-a'laisto the bell-crank 1D. ..The slide 1 565a. has an elongated slottembracing a .pin 19 on .the bell-icrankz'm and is normally held in the position shown relative-to thespin 1. 9.-.by means; ofza strong; tension spring 8 0 connected between ithe pin :79 land a similar-pin lemon-the slide Ma... I

Means. are I provided to selectively move one orzthe. other of the. hooks-aBZcand lfi tloutward .into engagement: with respective ones of; the pins 69 and-362i during. rearwardimovement of :the slide 65 .so as .to'rock the box-'caml53in onedirection or the other. and thereby raise or lower the accumulator.

A" pairlof juxtaposedaccumulator control links 82 aand 8-3 are-located directly-adjacent the hooks 62 and 63 for controlling the latter. The links have elongatedslots -at the -rear thereof embracing la pints extending from the-slide 65; While elongated slots-sat. the front: of the links embrace and are guided by annular spacers 85 forming part of a .control disc assembly: generally indicated. ato l: Pins kfi and fl l extend from'the links 8.2..and 83; respectively, and-norma1ly l-ie directly. behindzcammingshoulders 88 formed on theiassociated hooks. 'The -forward ends of the links 82: and 83 are provided:with-oppositely-extending. ears-9G and'dl, respectively, wh ichare arrangedto cooperate-with aligned' disos Ell-and 1 93, respectively, of theoont'rol diseassembl-y 84-: The discs have lobes, as at 95, located in diifer-ent positions therearound which, when aligned with the. ear. ofone of the. links, will prevent the link from heingmoved along with its respective hook 62hr 63 .as the slides oiandflfifiware moved rearward.

The control disc assembly: --comprises four notched: discs .92, =93, 98 and -99 splined on a squared;.-sleeve 180*. which, ini turn, is rotatably mounted..,on a frame spin. I-8 I. Annular spacers 8.51am free-to rotate on the sleeve ran.- A washer :lllzisplined. on the sleeve lilo .is: provided with-an car 65. positioned between 1 two-teethof a--gear .l2'l,,,also;.m.ounted on thesleeve; thereby-integrallyconnecting thegear to trhE SIBSVG.

*Whenior example, the .disc assembly M- is so positioned that the disc- 92-will blockthelink 82 frommovingrearward with its associated hook (52, the pin:.-3fi will;.camthe latter hook outward intoyengagement with pinififl as the slide-N moves the hooks 62; and wirearward. :Furtherrearward movement of :tha slide'fi fi and hooks will therefore cause the hook 62 to rock the cam 52-into'-its extreme-iclockwise'rocked: position as illustrated in mesh with -rack..-=gear- Fiat; 11), therebyiraising accumulator .Az into 8801310115141 of tracks .24. Likewise, when the disc assembly 94 is;..so:positioned as to block rearward movement-ofthei'link 33, it willcausewthe hOOkifiSJfiO .moveoutwardzto engage pin 6| and; thus rock'the-cam 53 into an extreme aclockwiseyroeked position :to lower the accumulator into-meshwith thesrack gear secltionsdtof theracks. On'the otherxh-and, when thecdisc assembly 94 is .so. positioned that: it will not block either-links :821 or .83 fromrmovement, neither of the-hooks .will. be :moved :outwardxdurzingirearward movement :thereof and, therefore, the..-accumulator will remain in its. neutral :JOI non-add? position during operation of the racks;

Referring.- to Fig.v .6,- ,itwillbe noted v that 1.8.4 are formed on slide directly; in the-rear :of pins 6.3.and6i on thecam 53; Therefore,:on iforward'movement/01f thierslide 65, oneorvthe othenof 'saidzshoulders. willengage itsgassociatedxpinandthereby return the::cam-i53, and consequently; the accumulator, to its... newtral position if the accumulator hadzpreviously b.een.;raised:or lowered.

Control ofthe hooks 6.2a..-and 53a; associated with the lower. accumulator. isaccomplish'ed in control of discs at and99, respectively, also 'fo-rm ing part of "the control disc-assemblyflh From the foregoing, it will be seen thatalthough the control links; i..e., .82 and 83, for controlling entry into any oneaocumulator-areeither blocked from moving or. are allowed tomove by their respective .control 'discs, they are neverthelesscapable oiacontrolling setting of the accumulater. into any iofzthree; different conditions; i. e., add, subtraetand non-add; relative tocthe actu ato-r racks.

barsalitl9,i2ll,'2'l and 2m.

Describingrfirst the control of: 'the di'sc assembly by the various. control bars,-the bars' l-9 to 2'la; inclusive, .guided for vertical nio-vementin slets formedin spaced keyboard frame plates H]! and 5.02, (Fig; 6A) The stem of each control bar overlies apin I63 carried on an arm-lfidwhich is pivotedon a stationary framewstud I05 and is normally held 'ina raised position as illustrated in'Fig. .SA by a tensionspring lflo extending-between the pin I63 and a frame-stud l M, thusdikewise'holding the associated control bar-in raised position. Thepins H33 overlie cooperating camming. surfaces. let formed on an accumulator-control slide I99. The latter is provided with elonated": guide slots H0" and lit embracingand guided .by the frame studs ltlhassociated with the subtract and total keys is and ill, respectively; "The add bar l5 Fig. 6A) is likeWisesuita-bly guided for vertical movement and the-stemthereof is'connected through a pin and 'slot connection HZ 'to an arm llfl-fixed on arockable shaft H4.

H? on slide 1894.-

Depression of the move the slide ill-9 into an extreme'rearm-ost position. The--* various other control bars 1 '9 to 2Id are, on the other hand, effective to differentially advance the slide I09 forwardly to different positions.

The slide I09 has a rack gear section I thereon meshing with an idler I2I rotatably mounted on a pin I22 carried by a slide I23. The latter has elongated slots thereon embracing and guided by frame studs I24. The pinion I2I also meshes with a rack I having elongated slots also guided over the frame studs I24 independently of the slide I23. Therefore, considering for the moment the slide I23 to be held stationary, any movement of the slide I09 will be transmitted through pinion I2! to the rack I25. The latter has a rack gear section I25 meshing with the gear I2'I (see also Fig. 8) which is attached to the sleeve I80 of th control disc assembly 94. Consequently, depression of different ones of the various control bars will effect rotation of the control disc assembly into different angular positions relative to the various control links.

Means are provided under control of the control knob I8 (Figs. 1, 3 and 4) for differentially setting the control disc assembly 94 jointly with the aforementioned control thereof by the different depressible control bars I5 to Ho. For this purpose, the control knob I8 is operatively connected to the slide I23 whereby shifting of the knob into its different positions causes movement of the pinion I2I fore and aft along the slide I09 to accordingly set the slide I25 and disc as sembly 94.

The slide I23 is coupled through a pin and slot connection I28 to a control lever 20 pivoted on a frame stud I39. held against a pin I3I carried on a lever I32 by a spring I33 tensioned between these two levers. The lever I32 is pivoted on a frame pin I34 and is urged by a spring I35 to hold its pin I3l against the surface of a step cam I35. The latter has slots guided over frame studs I31 and is connected through a pin and slot arrangement I38 (see also Figs. 3 and 4) to a slide I39. The control knob I8 extends through a slot I85 in the casing I2 and is suitably secured to an extension I40 of the slide I39. The latter is guided by frame pins MI and I42 extending through elongated slots in the slide, permitting manual setting of the slide into any of four positions and movement thereof into any of five positions.

The slide I39, and consequently slide I23 (Fig. 6), is centralized in any of four positions by a centralizer I43 pivoted at I44 and urged downwardly by a spring I45 tensioned between the centralizer and a suitable part of the frame to urge the centralizer into engagement with one of four equally spaced V-shaped centralizing notches I46 on the slide I39.

A key lock general indicated at I41 (Figs. 3, 4 and 5) is provided to selectively lock the control knob H8 and slide I39 in any set position, i. e., Lock, Cash, Add or GT. The lock I4! is mounted on the casing I2 and has a lock arm I48 extending therefrom. The lock arm I48 normally extends toward the rear of the machine as indicated in Fig. 3 in which position it is ineffective to engage the centralizer I43. However, upon turning of the look into locking condition, the arm is swung laterally into the position indicated in Fig. 5 wherein it overlies the centralizer I43 so as to prevent the same from being raised upon attempted movement of the knob I8.

From the foregoing, it will be seen that the slide I25 and, consequently, the control disc assembly may be set under joint control of the con- The lever I29 is normally trol knob I8 and control bars into different selected positions. For example, Fig. 12 shows the positions of the rack I25 and control disc assembly 94, resulting from setting of the knob I8 in its cash position and from depression of the charge bar 20.

Fig. 11 illustrates diagrammatically the relationship between the various control discs 92, 93. 98 and 99 and their respective control links 82, 83, 99 and 81 effected by different settings of the knob I8 and depression of different control bars. The figure illustrates developed views of the control discs formed according to the present disclosure. Also, the figure illustrates the relative settings of the discs and control links with the control knob I8 set in add position and with the add bar depressed. It will be noted that in this relative setting only the link 82 associated with the accumulator A will be blocked by the lobe of its associated control disc 92 whereas the remaining links will be permitted to move completely through their strokes. Accordingly, as aforementioned, the accumulator A (under control of discs 92 and 93) will be positioned to receive an additive entry.

As examples of various other conditions into which the machine may be arranged, setting of the knob I8 into GT position and depression of the add bar will effect a relative positioning of the links and discs according to the condition indicated by the line I49 in which case entry would be made additively into accumulator B only. Setting of the knob I8 in its cash position and depression of the paid out key (PO) would affect the relative positioning of the links and control discs according to the line 9a to effect a subtractive entry into the accumulator A only.

It will be seen that by reforming or replacing the various control discs with other shaped discs that various other combinations of controls may be affected to add or subtract out of either one or both accumulators or to total or sub-total out of either of the accumulators under control of the knob I8 and the different control bars.

As mentioned hereinbefore, the present machine is of the cash register type and the settable knob I8 in addition to preselecting the different accumulators for operation, is also effective to control the cash drawer to accommodate different conditions of use to which the machine may be put.

The drawer as disclosed in detail in the aforementioned Boyden et al, application, S. N. 38,294, and as partially indicated at 29 in Fig. 3, is suitably mounted in the cash drawer casing I2 for movement to and from an open position. Spring means (not shown) are provided to yieldably urge the drawer toward its open position. However, the drawer is normally held in its illustrated closed position by a latch I50 (Figs. 3, 4 and 9) pivotally supported at I5I on a bracket depending from a frame I52 forming the base for the computing section of the machine and integral with the casing I2. The latch I50 is normally held in its illustrated position in latching engagement with the rear wall of the drawer 29 by a spring I53 extending between a portion of the machine frame (not shown) and a pin I54 carried on an arm I55 also pivoted at I5I independently of the latch I50. The pin I54 normally rests against a shoulder I56 on the latch to yieldably hold the same in its illustrated latching position;

The arm I55 is engaged by a roller I5'I on the zgo ivgosv lower 'end oi'a'dever'1-5'8 which is pivotally mounted at- [SQ-and is: provided with aroller at the upper end thereof engaging the periphery of adrawer release 'camd o'w mounted on the aforementionccl drive shat-E 12.-

UponL'cyol-ingr ofthe-machine; 'the cam its will rock cam follower use counter-clockwise to actuate arm 1:55:- apspring ['6 l to? the latchfin and thereby nor-- many actuated the latter: to release the-drawer, unless: the latch 'is be described presently;

In some: instances it is desira'ble to maintain thewdra'wer 26in -closed cond ition' throughout armachine operation such: as when the" control knob. I 8 is set in ""a-dd position for adding or subtracting items without cash transactions. For'th-is purposc; means under control of the knob P8; are providedto block release of the latch l fiflib-y the cam. r60: cross-slide I762 (Figs. 3, 4: and. 9-)? is: provided: havingelongated" slots I63 guided over guide studs I64 fixed to the bottom ofizth'e'i-rame i521 Theslide lol 'ha's' a pin L65 thereinv extending upwardly through a slot i66- ini ther' frame 2: andi couplcd through apin and: slot connec'tion'uto a. bcll crank -1 The lattenl is pivot'edi at Him and i's'co'upled through pinand: slot: connection: Nil? to the aforementionedztk-nob: controlled: slide I38;

Figs. decand 9:: illustrator the parts in positions located by: setting th'e control knob i'8 in it's add position",-and- ,imsuchlp'ositiorr a' blocking lug [69 depending. from ther'slide i 62v is located over the latch I; Gperation: of? the machine with the slide; I 62:inathis .position-xwiil cause the spring i64 tcwyieldtduring movement? or" the lever I58 anct' -arm: I ::by: the: cam. I60 andg 'thcrefore; the drawer? "will: be r6tailIed'i"iIl closed position. A- secondablockinga lug Hflflis: located on the slide I 6- 2-in:suclr a.position:tliat when the control knob I8" is moved to; its "lock" position; the latter l'ug will ibclrlocatediover thealatch: I50 talikewisepreventv movement thereof to. drawer-releasing po-- sition: However upon movement of: the knob I 8 to 1' ,cash or GT-"l positions; both; blocking lugs I59? and 1 I: will be moved: outs-of. registry: with the.latch 150,.permittingwoperation ofT'the cama [61L to move the; latch rto drawer releasing .positionw On'theother' hand, movement of; th'evknob I 8430: its-lfdrawer. positiomwil-Lcausewauoamming lug IJZonthe CI'OSS-:S']-id& 1-62 to: engage a lug I 73 onthe latch l 50-and directly raise. the latter to its drawer releasing, position without operating the'machina Although we have descri-bed:.'our invention: indetail X in. its, preferred; form and; therefore 1 have: utilizedwcertainzspecific: terms and. languages.- herein, it-istosbe understoodethatsthe present disclosure. isillustrative': rather than: restrictive anduthatt changeslandrzmodifications may be: madewi-thoutdeparting fromthewspirit orscope: For example;

of 1 the claims appendedrhereto. control. of. various-other forms of controlwdiscs: having.v differentially positioned lobes thereon may; be .substitutedlto leflectavarious: desired ,func-- tionsoithemach-ine.

Having thus describedrther invention what We desire; to" secure by: Unitedrstates. Letters: Pat-- out; is

1 ;..Ina calculating machine having; an ac-- cumulator anddi-fierential actuators therefor; the combination. comprising means; for opera-- tivel'y connecting said. accumulatorntof said acituatorsv including ancontrolrelement movable be tween la j first position anch aasecond: position, acJ- blocked by other means to tuating means, a coupling member operable by said actuating means ndoa'dapted to: move said control element from said first position-to said second position, said coupling member being nor mally outof" coupling relation with said control element, a camming device engageablewith said control element and adapted-upon relative movement between said camming device and said coupling mem-ber'to cam said. coupling member into coupled relation with said control element, means for normally causing said camming device to movewith said control element and means for selectively causing said relative move ment between said: camming device and said couplingmember.

2.-I'n= a c alculating machine having an accumu lator and differential' actuators therefor; the combination comprising. means for operatively connecting said accumulator to said ac tuators including a control element movable from a first position. to a second position; actuating: means; a coupling member operable by said. actuating means and: adapted to movesaid control element from said first position to sa'id second position, said coupling memberbeing normally out of coupled relation with said: con trol element, a camming device engageablewith saidcontrol' element and adapted upon relative movement between said: camming device andsaid coupling member to cam said'couplingomember intocoupled relation with said: control element, means including a spring carried by said actuat-- ing means for normally causing said camming device to move with said coupling element; and means for selectively arresting said camming device.

3. In acal'culating machine-having anaccumw later. and. diiferential actuators therefor; the combination comprising means for operatively connecting said accumulator to said actuators in-- eluding a control element movable from a first position to' a second position, a reciprocally operable: actuating means, acoupling member op-- erable by sa,id actuating meansan'd adapted uponmovement' of said actuating device in one direction to move said control element from said first position to said second position, said coupling riedby said actuating means for normally causing said camming' device to move with said coupling element, means for selectively arresting said camming device, and means invariably actuated by said actuating means during return movement thereof in the opposite direction for returning said control member from said second position to said first position.

4 Inxa .calculating'machine having an accumulator' and. difierential actuators therefor; the

..- combination comprising means for operatively connecting said accumulator to said actuators including a control element movable from a first position to a second position, actuating means, a: coupling member operable by said actuating meanstand adapted) to'move said control element from saidfi'rst. position to said second position, said. coupling member being normally uncoupled from said' control element, an engaging device adapted," upon relative movement between said r'device and said coupling member? to move said coupling member into coupled relation with said control element, spring means for normally causing said engaging device to move with said coupling member, and selectively settable means for arresting movement of said engaging device whereby to cause said engaging device to move said coupling member into coupled relation with said control element.

5. In a calculating machine having an accumulator and differential actuators therefor; the combination comprising means for operatively connecting said accumulator to said actuators including a control element movable from a first position to a second position, reciprocatory actuating means, a coupling member operable by said actuating means during movement of said actuating means in one direction and adapted to move said control member from said first position to said second position, said coupling memher being normally uncoupled from said control member, an engaging device adapted upon relative movement between said device and said coupling member to move said coupling member into coupled relation with said control member, spring means for normally causing said engaging device to move with said coupling member, selectively settable means for arresting movement of said engaging device, and means responsive to movement of said actuating means in the opposite di rection for causing said coupling member to move into uncoupled relation with said control member.

6. In a calculating machine having an accumulator and difierential actuators therefor; the combination comprising means for operatively connecting said accumulator to said actuators including a control element movable from a first position to a second position, actuating means, a couplin member operable by said actuating means and adapted to move said control member from said first position to said second position, said coupling member being normally uncoupled from said control member, an engaging device adapted upon relative movement between said device and said coupling member to move said coupling member into coupled relation with said control element, spring means for normally causing said engaging device to move with said coupling member, a notched control member adapted upon setting tions to arrest or to permit movement of said engaging device, and key controlled means for selectively setting said control member into different ones of said positions thereof.

'7. In a calculating machine having an accumulator and differential actuators therefor; the combination comprising means for operatively connecting said accumulator to said actuators including a control element movable from a first position to a second position, actuating means, a coupling member operable by said actuating means and adapted to move said control element from said first position to said second position, a camming member cooperable with said coupling member, spring means for normally maintaining said coupling member out of cooperative relation with said control element, said spring means being effiective to normally cause said camming member to move with said coupling member, and means for selectively arresting said camming member from movement, said camming member being operable upon arresting thereof to cam said coupling member into cooperative relation with said control member durin operation of said actuating means.

thereof into different posi- 8. In a calculating machine having an accumu lator and differential actuators therefor; the combination comprising means for operatively connecting said accumulator to said actuators including a control element movable from a first position to a second position, actuating means, a coupling member operable by said actuating means and adapted to move said control element from said first position to said second position, a camming member cooperable with said coupling member, spring means for normally maintaining said coupling member out of cooperative relation with said control element, said spring means being effective to normally cause said camming member to move with said coupling member, a notched control member adapted upon setting thereof into different ones of a plurality of positions to arrest or permit movement of said camming member, and means comprising a plurality of depressible keys for selectively setting said control member into any of said positions thereof.

9. In a calculating machine having reversible accumulator elements and differential actuators therefor; the combination comprising means for operatively connecting said accumulator elements to said actuators including a control element settable into a first position for relatively adjusting said actuators and said accumulator elements to permit driving of the latter in an additive direction, said control element being settable into a second'position for relatively adjusting said actuators and said accumulator elements to permit driving of the latter in a subtractive direction, a pair of coupling members adapted to engage said control element whereby to actuate the same, means for concomitantly actuating said coupling members, one of said coupling members being adapted to set said control element in said first position, the other of said coupling members being adapted to set said control element in said second position, camming members engageable with respective ones of said coupling members and adapted upon relative movement between each camming member and its respective coupling member to cam the latter into coupled relation with said control element,

means normally causing said camming members to move with said couplin members, and means for selectively arresting said camming members.

10. In a calculating machine having reversible accumulator elements and difierential actuators therefor; the combination comprising means for operatively connecting said accumulator elements to said actuators including a control element settable into a first position for relatively adjusting said actuators and said accumulator elements to permit driving of the latter in an additive direction, said control element being settable into a second position for relatively adjusting said actuators and said accumulator elements to permit driving of the latter in a subtractive direction, a pair of coupling members adapted to engage said control element whereby to actuate the same, means for actuating said coupling members, one of said coupling members bein adapted to set said control element in said first position, the other of said coupling members being adapted to set said control element in said second position, a pair of camming devices individual to said coupling members and adapted upon relative movement between the same and said coupling members to cause engagement of said coupling members with said control element, a plurality of control keys, and means controlled by aeanee'r ing said actuators and. said accumulatorelements '0 permit driving of the latter inran additive direction, said control; element being settable into a second position.for-relatively adjusting said: actuatorsv and said accumulator elements to permit driving of the latter in a subtractive direc-- tion, appair. of: couplingmembers'adapted to engage: said control element. whereby" to actuate the: same;means'for actuating said coupling members, one 01 said: coupling, members being adapted to set said controlelement in said first. posi-- tion, the: other of saidcoupling members being adapted to set said control: element in said second position, a pair of camming devices individual to said coupling members and adapted upon relative movement between the-same and said couplinge'members to cause engagement" between said couplingmembersand said control element, aplurality ofcontrolkeys, and means responsive to depression of certain of saidkeys for causingoperation of said actuating means and for preventing movement of one or another of said cammingdevices.

12. In a calculating'machine having reversible accumulator elements and differential actuators therefor; the combination comprising means for operatively-connecting said accumulator elements to said actuators includinga control element settable into a first" position for relatively adjusting said actuators-and said accumulator elements to permit driving of the" latter in an" add'it'ivedirection, said control element being settable into a second position for relatively adjusting sald'actuators and said accumulator elements; to permit driving of the latter ma subtractive direction, a pair of coupling members adapted to engage said control element whereby to actuate the same, means for actuating. said; coupling. members, one of said coupling members being adapted to set saidcontrol elementin" said first position,

the otherpof said coupling members being adapt.- d

edtov set saidcontrolv element in said second position, a.pairrof camming devicesindividual tUS'elfld coupling. members and adapted upon relatlve movement; between the same andsaid coupling members because en agementbetween saidcoupling members and said control element, ;a notched control member adapted upon setting thereof into any of a plurality of positions to prevent or permit movement of one or the other of said camming devices relative to said coupling members, and means for selectively setting said control element into any of said positions therelS. In a calculating machine having reversible accumulator elements and differential actuators therefor; the combination comprising means for operatively connecting said accumulator elements to said actuators including a control element settable into a first position for relatively adjusting said actuators and said accumulator elements to permit driving of the latter in an additive direction, said control element being settable into a second position for relatively adjusting said actuator and said accumulator elements to permit driving the latter in a subtractive direction, said 714 con-troll. element being: settablesintoxza. third: posittion forpreventing driving saidaccumulatorfielee ments by said'actuators, a7 pairof couplingmemrbers adapted to engage'saidlcontrolelement; :an: actuating device for said coupling members one? ofsaid coupling members being adapted to'm'ove said control element from said thirdaposition; to said first position during movement: of said actuating device in one direction, the-:other of said coupling members being adapted? tOlHIQVS saidcontrol element from said third positiom to said second position duringsa-id:movementxzoi said actuating device, a pair'of cammingidevices: individual to saidcoupling members and adapted;

' upon relative movement between said camming devices and respective-ones of saidcoupling memebers to causeengagcment of the'latter with said control member, spring means f orrnormallyr' maintaining said coupling members disengagedfrom: said control member and for causing; said". canrming devices to move with said: coupling-:mem.--- here, a notched control member adapted? upon: setting thereof into d-ifierent positions to arrestiort to permit movement of one or the. other offsaid f camming devices, and-means for selectively. setting said control member into different oness ofz said positions thereof.

14. Ina calculating-machine havingreversible accumulator elements and difierential;actuators; therefor; the combination comprising means: for operatively connecting said accumulator elements to said actuators including'a control element set.- table into a first position for relatively adjustingsaid actuators. and said accumulators elements: to

settable i'ntoaa: second position for relatively adjusting"saidiactua ator and said accumulator elements" to: permitv driving the latter in a'subtractive direction; said-- control element being set-table into a third posiments by said actuators; vapair'of. couplingzmem bers adapted to engage said control .elenient,- a reciprocable actuating device: for said' coupling members, one ofsaid coupling: members: being adapted to-move said control element: from said third position to said first posit-ionduring movement ofsaid: actuating device in one. direction. the other ofsaidcoupling members beingadapted toimovesaid controlelement fromsaid thirdpositionto-saidsecond position during saidrmovement of said actuating device, a pair of cammingi devices individual said coupling membersand adapted upon relative movement between: said camming devicesand respective ones of said" con-- pling-members tocauseengagement of the latter with said control member; for selectively permitting; or: preventing movement ofsaid' cam- 15. In a calculating machine having an accumulator and differential actuators therefor} ment between said device and said coupling member to move said coupling member into operative engagement with said control element,

means for normally causing said engaging device to move with said coupling member, a notched control element adapted upon setting thereof into different ones of a plurality of different positions to arrest or permit movement of said engaging device, two independently movable adjusting devices, means for differentially adjusting said adjusting devices, and means differentially settable by both of said adjusting devices for setting said control element into any of said positions thereof.

16. In a calculating machine having reversible accumulator elements and differential actuators therefor; the combination comprising means for operatively connecting said accumulator elements to said actuators including a control ele ment settable into a a first position for relatively adjusting said actuators and said accumulator elements to permit driving of the latter in an additive direction, said control element being settable into a second position for relatively adjusting said actuators and said accumulator elements to permit driving of the latter in a subtractive direction, a pair of coupling members adapted to engage said control element whereby to actuate the same, means for actuating said coupling members, one of said coupling members being adapted to set said control element in said first position, the other of said coupling members being adapted to set said control element in said second position, a pair of camming devices individual to said coupling members and adapted upon relative movement between the same and said coupling members for causing engagement between said coupling members and said control member, a notched control element adapted upon settin thereof into different ones of a plurality of positions to arrest or permit movement of one or the other of said camming devices, two independently movable adjusting devices, means for differentially adjusting each of said adjusting devices. and means differentially settable by both of said devices for setting said control element into any of said positions thereof.

17. In a calculating machine having a plurality of accumulators and differential actuators therefor; the combination comprising means for operatively connecting said accumulators to said actuators including a plurality of control elements for respective ones of said accumulators, each of said control elements being movable from a first position to a second position to operatively connect its respective accumulator to said actuators, actuating means, a plurality of coupling members operable by said actuating means and adapted to move respective ones of said control elements from said first positions to said second positions thereof, a plurality of camming members cooperable with respective ones of said coupling members, spring means for normally maintaining said coupling members out of cooperative relation with said control elements, said spring means being effective to normally cause said camming members to move with said coupling members, said camming members being operable upon arresting thereof to cam said respective coupling members into cooperative relation with said respective control members during operation of said actuating means, a notched control element adapted upon setting thereof into different positions to arrest or permit movement of one or another of said camming members.

18. In a calculating machine having a plurality of accumulators and differential actuators therefor; the combination comprising means for operatively connecting said accumulators to said actuators including a plurality of control elements for respective ones of said accumulators, each of said control elements being movable from a first position to a second position to operatively connect its respective accumulator to said actuators, reciprocatory actuating means, a plurality of coupling members operable by said actuating means and adapted during movement of said actuating means in one direction to move said respective ones of said control elements from said first position to said second positions thereof, means normally maintaining said coupling members out of cooperative relation with said control member, devices individual to said coupling members and responsive to actuation of said coupling members by said actuating means for causing engagement thereof with said respective control members, an element common to all of said devices and selectively settable to enable or disable one or another of said devices, and means invariably actuated by said actuating means during movement thereof in the opposite direction for returning any of said control members which are in said second position thereof to said first position thereof.

WHARTON A. PARSONS.

RICHARD E. BUSCH.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,048,249 White Dec. 24, 1912 1,908,358 Horton May 9, 1933 2,110,987 Kammel Mar. 15, 1938 2,118,588 Butler May 24, 1938 2,203,533 Landsiedel June 4, 1940 2,376,481 Gubelmann May 22, 1945 

